Number([]),// ⭐ 0 ("prefer-number" conversion)// -----------------------------------------------------[].valueOf(),// [] (1. array: an object, fall back to `toString`)[].toString(),// '' (2. empty string, primitive accepted)// 0 (3. '' converts to 0)Number([8]),// ⭐ 8 ("prefer-number" conversion)// -----------------------------------------------------[8].valueOf(),// [8] (1. array: an object, fall back to `toString`)[8].toString(),// '8' (2. string, primitive accepted)// 8 (3. '8' converts to 8)Number([1,2]),// ⭐ NaN ("prefer-number" conversion)// -----------------------------------------------------[1,2].valueOf(),// [1,2] (1. array: an object, fall back to `toString`)[1,2].toString(),// '1,2' (2. string, primitive accepted)// NaN (3. '1,2' converts to NaN)
